Well, Roman23 is upgrading his 2009 Mac Pro to include the hardware to accept the Westmere upgrade. For this upgrade, you would need to replace both the backplane board (main motherboard - about $350) and the Processor Board (about $150) so that the firmware matches and the Mac Pro can support the B1 stepping of the Westmere chip. You can accept up to a W3680 on the single-processor model once you do this upgrade or up to a X5690 on the dual board if you go that route. Remember that on the duals they are LIDLESS processors with no IHS from Apple, and if you use the standard processors with the IHS you will need to be careful not to destroy your chip like Anandtech did with their first try at the dual upgrade.
I have been in contact with AZREOSpecialist about the upgrade, he is considering doing this upgrade himself, too. Roman23 is getting the whole upgrade done to his machine by an Apple service tech for around $400.00. A pretty good deal considering a new 2010 6-core Mac Pro would be $3699 to start, then your RAM upgrades would set you over $4000. His current machine was originally a 2.66GHz Mac Pro that he bought refurbished from the Apple Store online for $2149. He then purchased the W3580 chip from VelocityMicro in Viriginia for $599 and upgraded it himself. That was a super deal on the chips, they don't have anymore in stock on eBay, they sold every W3580 they had. He plans to sell his current chip for $800 (They are around $1100 new) to fund the purchase of his W3680. The W3680 is anywhere from $1000 - $1200 for the chip.
The W3570, the W3580, the W36xx will all support 1333MHz memory. The W3565 (the 3.2GHz Nehalem Mac From Apple right now) will not support 1333MHz memory, only 1066MHz.
Here is my last message to AZREOSpecialist, in which I detailed some of the specifics on the 2010 Mac Pro upgrade underway by Roman23 (currently banned from MacRumors for various unfair reasons):
"Well I have some new information....
Roman23 is going through with the upgrade on his 2009 model. He found out that you need to replace the processor board as well so that the SMC firmware matches on both the processor board and the backplane board. He was able to get the 2010 Mac Pro install disks directly from Apple for FREE. He needed a 2010 Mac Pro valid serial number to be allowed to get the discs, for some reason, so we got one. The 2010 Mac Pro install disks wouldn't work on his 2009 system, they look for the MacPro5,1 identifier when trying to install, so it wouldn't even install on his machine yet. He is getting the entire upgrade done by an Apple authorized service professional for about $400 (This includes a new 2010 Mac Pro backplane board, a 2010 processor board, and he he is going to keep his W3580 for now until he can afford to buy the 6-core W3680). The W3580 chip as well as the W3570, the whole W3500 series will work with the 2010 board because it supports D0 as well as B1 stepping. The board for the 2010 2.8GHz model is the same as the 3.33GHz model, but one processor is Nehalem with D0 stepping, and one is Westmere with B1 stepping. They are going to re-install his W3580 on the new processor board, and he is keeping his 1066MHz RAM on the 2010 board from his 2009 machine, so yes the 1066MHz RAM will work with both Nehalem and Westmere. The W3570 and W3580 both support 1333MHz RAM, but the W3565 does not. Apple shipped their 3.33GHz quad 2009 model with 1066MHz memory, but it supports up to 1333MHz memory. Roman23 has paid for the parts already and is going to be getting the upgrades done next week...I will let you know how it goes and keep you updated. The only difference in his machine after this phase of upgrades will be that his machine will be a "MacPro5,1" and he will be able to accept the Westmere chip when he is ready to make that investment. The guy on eBay from Taiwan that had a few on hand for $899 has sold out of his chips, the cheapest ones I can find now are $1000 - $1100 with a new boxed W3680 chip going on eBay for about $1200."
So that is all the information I have now. With this info you should be able to upgrade your 2009 model Mac Pro to a 2010 model that will accept a 6-core Westmere chip. The parts are readily available from www.applecomponents.com (They buy Mac Pros and take them apart and sell the individual parts on their site).
Good luck!!
-Ward
I have been in contact with AZREOSpecialist about the upgrade, he is considering doing this upgrade himself, too. Roman23 is getting the whole upgrade done to his machine by an Apple service tech for around $400.00. A pretty good deal considering a new 2010 6-core Mac Pro would be $3699 to start, then your RAM upgrades would set you over $4000. His current machine was originally a 2.66GHz Mac Pro that he bought refurbished from the Apple Store online for $2149. He then purchased the W3580 chip from VelocityMicro in Viriginia for $599 and upgraded it himself. That was a super deal on the chips, they don't have anymore in stock on eBay, they sold every W3580 they had. He plans to sell his current chip for $800 (They are around $1100 new) to fund the purchase of his W3680. The W3680 is anywhere from $1000 - $1200 for the chip.
The W3570, the W3580, the W36xx will all support 1333MHz memory. The W3565 (the 3.2GHz Nehalem Mac From Apple right now) will not support 1333MHz memory, only 1066MHz.
Here is my last message to AZREOSpecialist, in which I detailed some of the specifics on the 2010 Mac Pro upgrade underway by Roman23 (currently banned from MacRumors for various unfair reasons):
"Well I have some new information....
Roman23 is going through with the upgrade on his 2009 model. He found out that you need to replace the processor board as well so that the SMC firmware matches on both the processor board and the backplane board. He was able to get the 2010 Mac Pro install disks directly from Apple for FREE. He needed a 2010 Mac Pro valid serial number to be allowed to get the discs, for some reason, so we got one. The 2010 Mac Pro install disks wouldn't work on his 2009 system, they look for the MacPro5,1 identifier when trying to install, so it wouldn't even install on his machine yet. He is getting the entire upgrade done by an Apple authorized service professional for about $400 (This includes a new 2010 Mac Pro backplane board, a 2010 processor board, and he he is going to keep his W3580 for now until he can afford to buy the 6-core W3680). The W3580 chip as well as the W3570, the whole W3500 series will work with the 2010 board because it supports D0 as well as B1 stepping. The board for the 2010 2.8GHz model is the same as the 3.33GHz model, but one processor is Nehalem with D0 stepping, and one is Westmere with B1 stepping. They are going to re-install his W3580 on the new processor board, and he is keeping his 1066MHz RAM on the 2010 board from his 2009 machine, so yes the 1066MHz RAM will work with both Nehalem and Westmere. The W3570 and W3580 both support 1333MHz RAM, but the W3565 does not. Apple shipped their 3.33GHz quad 2009 model with 1066MHz memory, but it supports up to 1333MHz memory. Roman23 has paid for the parts already and is going to be getting the upgrades done next week...I will let you know how it goes and keep you updated. The only difference in his machine after this phase of upgrades will be that his machine will be a "MacPro5,1" and he will be able to accept the Westmere chip when he is ready to make that investment. The guy on eBay from Taiwan that had a few on hand for $899 has sold out of his chips, the cheapest ones I can find now are $1000 - $1100 with a new boxed W3680 chip going on eBay for about $1200."
So that is all the information I have now. With this info you should be able to upgrade your 2009 model Mac Pro to a 2010 model that will accept a 6-core Westmere chip. The parts are readily available from www.applecomponents.com (They buy Mac Pros and take them apart and sell the individual parts on their site).
Good luck!!
-Ward